0001764925-21-000107.txt : 20210706 0001764925-21-000107.hdr.sgml : 20210706 20210706170134 ACCESSION NUMBER: 0001764925-21-000107 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210701 FILED AS OF DATE: 20210706 DATE AS OF CHANGE: 20210706 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Henderson Cal CENTRAL INDEX KEY: 0001775683 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38926 FILM NUMBER: 211074937 MAIL ADDRESS: STREET 1: C/O SLACK TECHNOLOGIES, INC. STREET 2: 500 HOWARD STREET CITY: SAN FRANCISCO STATE: CA ZIP: 94105 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Slack Technologies, Inc. CENTRAL INDEX KEY: 0001764925 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] IRS NUMBER: 264400325 STATE OF INCORPORATION: DE FISCAL YEAR END: 0131 BUSINESS ADDRESS: STREET 1: 500 HOWARD STREET CITY: SAN FRANCISCO STATE: CA ZIP: 94105 BUSINESS PHONE: (415) 630-7943 MAIL ADDRESS: STREET 1: 500 HOWARD STREET CITY: SAN FRANCISCO STATE: CA ZIP: 94105 4 1 wf-form4_162560524617582.xml FORM 4 X0306 4 2021-07-01 0 0001764925 Slack Technologies, Inc. WORK 0001775683 Henderson Cal C/O SLACK TECHNOLOGIES, INC. 500 HOWARD STREET SAN FRANCISCO, CA 94105 0 1 0 0 Chief Technology Officer Class A Common Stock 2021-07-01 4 S 0 1499 44.29 D 38238 D Class A Common Stock 85655 I By trust Shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). Shares held of record by Cal Henderson and Rebecca Reeve Henderson, spouse of the Reporting Person, Trustees of The Henderson Family Trust u/a/d/ 7/21/2016. /s/ David Schellhase, as Attorney-in-Fact 2021-07-06